diff --git a/calibre.spec b/calibre.spec
index b3b831e..d5b0f98 100644
--- a/calibre.spec
+++ b/calibre.spec
@@ -1,5 +1,5 @@
 Name:          calibre
-Version:       5.20.0
+Version:       5.21.0
 Release:       1mamba
 Summary:       A free and open source e-book library management application
 Group:         Graphical Desktop/Applications/Multimedia
@@ -213,6 +213,9 @@ install -d %{buildroot}%{_datadir}/zsh/site-functions
 %{python3_sitelib}/init_calibre.py
 
 %changelog
+* Fri Jun 11 2021 Automatic Build System <autodist@mambasoft.it> 5.21.0-1mamba
+- automatic version update by autodist
+
 * Fri Jun 04 2021 Automatic Build System <autodist@mambasoft.it> 5.20.0-1mamba
 - automatic version update by autodist